Sanders delegates shouted down California Secretary of State Alex Padilla when he spoke, chanting “count the votes.” In May, a Sanders supporter sued Padilla, accusing elections officials of disenfranchising voters unaffiliated with a political party. At the time, Padilla called the lawsuit “frivolous” and a federal judge rejected the suit.

Attendees were mostly quiet when House Minority Leader Nancy Pelosi spoke to the California delegation. Pelosi drew cheers from Sanders supporters when she said, “I don’t take it as a discourtesy, even if it is intended as one.”

After speaking, Pelosi told reporters that the protest among Sanders supporters was “interesting, even entertaining” but said there is no threat to party unity after WikiLeaks posted nearly 20,000 DNC emails late last week.